Evidence map›Paper›PMID 32219848›Full record

ArticleJournal of neurochemistry2021

Vitamin C regulates Schwann cell myelination by promoting DNA demethylation of pro-myelinating genes.

Tyler C Huff, David W Sant, Vladimir Camarena, Derek Van Booven, Nadja S Andrade, Sushmita Mustafi, Paula V Monje, Gaofeng Wang

Registry-linked trialOpen access · bronzeAbstract read
In one paragraph

Article in Journal of neurochemistry, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05648422 (Effect of the Nutritional Support System), which is not on this map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
2.5field-weighted citation impact, top 10% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT05648422 naunknown statusnot on this mapstarted 2023, after this paper: background citation

Effect of the Nutritional Support System (NSS) on Neuromotor Alterations in Patients With Cerebral Palsy

TypeinterventionalSponsorAnahuac UniversityRan2023 to 2025Enrolled144ConditionsCerebral Palsy, Spastic, MalnutritionArmsProbiotics, NSS Nutritional Support System, Deworming, Specific diet, Conventional diet (WHO)
3 · Its place in the literature

Who cites it

26 citing papers in PubMed, 1 synthesis or guideline pooled it, 45 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. The interaction between oxidative stress and Schwann cells.Experimental biology and medicine (Maywood, N.J.) · 2026
    Review
  4. Article
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  7. Article
  8. Article
  9. Review
  10. Article
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  18. Article
  19. The Epigenetic Role of Vitamin C in Neurodevelopment.International journal of molecular sciences · 2022
    Review
  20. Peripheral Nerve Injury Treatments and Advances: One Health Perspective.International journal of molecular sciences · 2022
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 1 country.

Tyler C HuffJohn P. Hussman Institute for Human Genomics, Dr. John T. Macdonald Foundation Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL, USA.
David W SantJohn P. Hussman Institute for Human Genomics, Dr. John T. Macdonald Foundation Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL, USA.
Vladimir CamarenaJohn P. Hussman Institute for Human Genomics, Dr. John T. Macdonald Foundation Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL, USA.
Derek Van BoovenJohn P. Hussman Institute for Human Genomics, Dr. John T. Macdonald Foundation Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL, USA.
Nadja S AndradeDepartment of Psychiatry & Behavioral Sciences, Center for Therapeutic Innovation, University of Miami Miller School of Medicine, Miami, FL, USA.
Sushmita MustafiJohn P. Hussman Institute for Human Genomics, Dr. John T. Macdonald Foundation Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL, USA.
Paula V MonjeDepartment of Neurological Surgery, Indiana University, Indianapolis, IN, USA.
Gaofeng WangJohn P. Hussman Institute for Human Genomics, Dr. John T. Macdonald Foundation Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL, USA.ORCID 0000-0001-8202-8282
University of Miami · USNeurological Surgery · US

Funding

Epigenetic Prevention of Diabetic Neuropathy by Vitamin CR01NS089525 · NINDS · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI WANG, GAOFENG · 2014 to 2017
$1.2M
NINDS NIH HHS R01 NS089525
6 · The paper itself

Abstract

Ascorbic acid (vitamin C) is critical for Schwann cells to myelinate peripheral nerve axons during development and remyelination after injury. However, its exact mechanism remains elusive. Vitamin C is a dietary nutrient that was recently discovered to promote active DNA demethylation. Schwann cell myelination is characterized by global DNA demethylation in vivo and may therefore be regulated by vitamin C. We found that vitamin C induces a massive transcriptomic shift (n = 3,848 genes) in primary cultured Schwann cells while simultaneously producing a global increase in genomic 5-hydroxymethylcytosine (5hmC), a DNA demethylation intermediate which regulates transcription. Vitamin C up-regulates 10 pro-myelinating genes which exhibit elevated 5hmC content in both the promoter and gene body regions of these loci following treatment. Using a mouse model of human vitamin C metabolism, we found that maternal dietary vitamin C deficiency causes peripheral nerve hypomyelination throughout early development in resulting offspring. Additionally, dietary vitamin C intake regulates the expression of myelin-related proteins such as periaxin (PRX) and myelin basic protein (MBP) during development and remyelination after injury in mice. Taken together, these results suggest that vitamin C cooperatively promotes myelination through 1) increased DNA demethylation and transcription of pro-myelinating genes, and 2) its known role in stabilizing collagen helices to form the basal lamina that is necessary for myelination.

Indexed as

AnimalsAscorbic AcidAscorbic Acid DeficiencyCells, CulturedDNA DemethylationFemaleMaleMiceMice, Inbred C57BLMice, KnockoutMyelin ProteinsMyelin SheathRatsRats, Inbred F344Schwann CellsSciatic NeuropathyAscorbic AcidMyelin Proteins5-hydroxymethylcytosineDNA demethylationmyelinSchwann cellvitamin C

Identifiers

PMID32219848
PMCPMC7530063
OpenAlexW3014088738

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.